BitLocker Drive Encryption

BitLocker Drive Encryption, available in Microsoft Windows Vista Enterprise, Windows Vista Ultimate, and Microsoft Windows Server Code Name "Longhorn" operating systems, is a data-protection feature. It helps to prevent unauthorized users from breaking Windows file and system protections if a computer is lost or stolen. BitLocker addresses the very real threats of data theft or disclosure from lost, stolen, or inappropriately decommissioned computer hardware through a tightly integrated solution in the Windows operating system.